For each 204 planar gradiometer channel, half-overlapping Hanning-windowed 4096-point Faspectraler Transforms (spectral bin width 0.01 Hz) were computed separately over the whole 90-s stimulation epoch, resulting in seven spectra (one for each windowed segment).
For each subject, echo planar images were aligned to each other; the T1 co-registered to the mean echo planar image and normalization parameters (obtained from T1 segmentation) applied to all echo planar images (3 × 3 × 3 mm resolution), followed by smoothing (9 mm Gaussian kernel).
This analysis was performed independently from each other by two physicians for both planar scintigraphy and SPECT/CT.
The results mean that the planar RDWM with four sets of DAMs in this example has the same structure as that of a conventional wire mechanism with four sets of single actuator modules, where each wire is equivalent to a set of two wires for each DAM in the planar RDWM, when judging the vector closure condition.
Image acquisition parameters were as follow: 41 kV, 140 µA, 5° half-cone beam angle, 18.05 cm source-to-object distance, and 78.88 cm source-to-detector distance, 50 frames were averaged for each of the 360 planar acquired at 1° rotational increments.
For each participant, 281 echo planar imaging (EPI) volumes comprising thirty-two 3-mm-thick slices were acquired using a continuous, descending acquisition sequence (TR = 2000 ms, TA = 2000 ms, TE = 30 ms, FA = 78°, matrix size: 64 × 64, in-plane resolution: 3 × 3 mm, interslice gap = 25%).
We have chosen the radiopharmaceutical 99mTc-HMPAO which is established for cell labelling and suitable for planar and tomographic scintigraphy.
Proof Note that for any maximal planar graph G, each edge of G belongs to at least 2 triangles.
Importantly, the length scales both for planar and for linear habitats are much smaller than typical sizes of microbial colonies or biofilms.
Figure2 shows C dx,y) for a planar network.
